Certified Tableau Data Analyst

A Data Analyst needs to add a custom color palette to Tableau Desktop for use across multiple workbooks. The palette must reflect the company’s branding.
What should the analyst do?

A Data Analyst has the following chart that shows profits and discounts over time.

What should the analyst do?

A Data Analyst needs to create a dashboard to show sales rep revenue tracking against goals. The revenue data source has already been published to the corporate Tableau site. The goals data is a Microsoft Excel file and must be updated on a regular basis by the sales managers.
How should the analyst set up the data sources to meet these requirements?

A Data Analyst has the following two tables that contain data about the books in a library.

Both tables are incomplete, so there are books missing from the tables.
The analyst needs to use the data from both tables in a single sheet. The solution must ensure that all the data is retained.
How should the analyst connect these tables?

A Data Analyst has the following dashboard that contains two visualizations.

The analyst wants to show only one visualization at a time. Users must be able to switch between visualizations.
What should the analyst use?